VM "teaming"

[BitRausch]

Hi guys,

I am trying to team up 2 kvm vm's in a subnet. I do have problems with the whole network/routing thing and I was wondering if you could help me on this.

pve server 1.3
2 NIC
1) 192.168.178.x - vmbr0
GW 192.168.178.1

2) 192 168.16.1 - vmbr1

Two kvm vm with vmbr1.
a) linux - ip 192.168.16.11
b) windows - ip 192.168.16.2


interfaces:

iface vmbr0 inet static
address 192.168.178.22
netmask 255.255.255.0
gateway 192.168.178.1
bridge_ports eth0
bridge_stp off
bridge_fd 0

auto vmbr1
iface vmbr1 inet static
address 192.168.16.1
netmask 255.255.255.0
bridge_ports eth1
bridge_stp off
bridge_fd 0
up route add -net 192.168.16.0 netmask 255.255.255.0 dev vmbr1
down route add -net 192.168.16.0 netmask 255.255.255.0 dev vmbr1

Somehow I am not able to reach any of the vm ip's.
I am pretty sure it's probably a simple mistake but I can not figure it out.
Any help would be appreciated.

Kind regards
B.

 

[dietmar]

What is the exact problem?

 

[BitRausch]

Hi dietmar,

I am not able to reach any of the vm's ip address. E.g ping 192.168.16.11 does not work. I am not very good with linux networking so I am not sure what is wrong.
If I change the vm ip to the 192.168.178.x subnet I can see them without a problem.

Basically I need to simulate a different subnet with 2 machines included in that net. So I thought I could use the 2nd NIC to create the subnet.
Maybe my thinking is wrong...

Thanks in advance for your time.

Kind regards
B.

 

[BitRausch]

Re: VM "teaming" -SOLVED

Hi dietmar,

I found the error:

I had to provide the vmbr1 address as the gateway address to vm ip configuration and set a static route to the router!!

here is the solution for anybody who is interested:

PVE Server interfaces:

iface vmbr0 inet static
address 192.168.178.22
netmask 255.255.255.0
gateway 192.168.178.1
bridge_ports eth0
bridge_stp off
bridge_fd 0


auto vmbr1
iface vmbr1 inet static
address 192.168.16.10
netmask 255.255.255.0
bridge_ports eth1
bridge_stp off
bridge_fd 0


vm entry (ubuntu interfaces as a sample)

iface eth0 inet static
address 192.168.16.11
netmask 255.255.255.0
gateway 192.168.16.10

On my router (AVM FritzBox 7170) I added a static route:
Network 192.168.16.0
Netmask 255.255.255.0
Gateway 192.168.178.1

Now I can ping/reach all my clients

Kind regards
B.